The third week of the month means it's time for Master's Class: a look at an exemplary piece of Sherlockian scholarship from over the years. 

 

In this episode, we turn to an award-winning article in The Baker Street Journal. S. Tupper Bigelow pondered the patterns of hoof-marks as laid out in various editions of the Canon, and won the Morley-Montgomery Award in 1962 for it. It's just a Trifle.